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Erschienen in: Herz 4/2017

31.08.2016 | Original articles

Intracoronary pressure measurement differences between anterior and posterior coronary territories

verfasst von: Dr. T. Härle, S. Meyer, W. Bojara, F. Vahldiek, A. Elsässer

Erschienen in: Herz | Ausgabe 4/2017

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Abstract

Introduction

Intracoronary pressure measurements have improved assessment of angiographic intermediate coronary stenoses. Methodically, pressure equalization and actual measurements are frequently performed at different height levels, depending on the particular coronary territory analyzed. Considering a hypothetical influence of hydrostatic pressure and the supine position of the patient, differences in the results of intracoronary measurements between anterior and posterior vessels seem likely. The purpose of this study was to compare the results of intracoronary pressure measurements between anterior and posterior coronary territories.

Methods

Intracoronary pressure measurements of 214 coronary stenoses in 158 patients were analyzed. Fractional flow reserve (FFR) was measured in all stenosis and instantaneous wave-free ratio (iFR) in 197 stenoses in 144 patients.

Results

Both FFR (0.79 vs. 0.87, p < 0.001) and iFR values (0.86 vs. 0.94, p < 0.001) were significantly higher in posterior compared to anterior coronary vessels. Patients with only anterior or posterior lesions did not differ regarding clinical or lesion characteristics, in particular coronary stenosis severity (62.5 vs. 61.6 %, p = 0.27).

Conclusions

Results of intracoronary measurements were systematically higher in the posterior coronary vessels when compared with anterior vessels. This phenomenon was independent of coronary stenosis severity or any clinical characteristics in our study population.
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Metadaten
Titel
Intracoronary pressure measurement differences between anterior and posterior coronary territories
verfasst von
Dr. T. Härle
S. Meyer
W. Bojara
F. Vahldiek
A. Elsässer
Publikationsdatum
31.08.2016
Verlag
Springer Medizin
Erschienen in
Herz / Ausgabe 4/2017
Print ISSN: 0340-9937
Elektronische ISSN: 1615-6692
DOI
https://doi.org/10.1007/s00059-016-4471-z

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